Base | Representation |
---|---|
bin | 111010111101… |
… | …1000110101001 |
3 | 2011011112120121 |
4 | 1311323012221 |
5 | 30403203222 |
6 | 3022323241 |
7 | 523520116 |
oct | 165730651 |
9 | 64145517 |
10 | 30912937 |
11 | 164a4390 |
12 | a429521 |
13 | 65346a3 |
14 | 416990d |
15 | 2aa95c7 |
hex | 1d7b1a9 |
30912937 has 8 divisors (see below), whose sum is σ = 34151040. Its totient is φ = 27746160.
The previous prime is 30912911. The next prime is 30912941. The reversal of 30912937 is 73921903.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 30912937 - 215 = 30880169 is a prime.
It is not an unprimeable number, because it can be changed into a prime (30912907) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16918 + ... + 18655.
It is an arithmetic number, because the mean of its divisors is an integer number (4268880).
Almost surely, 230912937 is an apocalyptic number.
It is an amenable number.
30912937 is a deficient number, since it is larger than the sum of its proper divisors (3238103).
30912937 is a wasteful number, since it uses less digits than its factorization.
30912937 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 35663.
The product of its (nonzero) digits is 10206, while the sum is 34.
The square root of 30912937 is about 5559.9403773782. The cubic root of 30912937 is about 313.8437056023.
The spelling of 30912937 in words is "thirty million, nine hundred twelve thousand, nine hundred thirty-seven".
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